The windows of each cathedral are designed differently. This is because originally, there were not supposed to be any glass panes there at all. It’s all about the wind and the organ music, which sound different through the windowless openings. Thus, each cathedral has its very own unique sound. Every bell was also crafted with great precision. and should be made of pure material; otherwise, the bell sounds quite different from the bells of other churches. There are wonderful German legends and fairy tales by the Brothers Grimm about this.
But actually, I don’t believe this culture originated in Tartary.
Furthermore, it makes no sense that it is officially claimed that the cathedrals were built in the 17th century. After all, it takes an enormous amount of effort to build even a single cathedral, yet hundreds of them are said to have been built during that time.

edit:
a church = build up a resonance field
also the churches are built above water vein intersections